Cutting – Processes – With preparatory or simultaneous ancillary treatment of work
Patent
1980-08-12
1982-08-10
Yost, Frank T.
Cutting
Processes
With preparatory or simultaneous ancillary treatment of work
83170, 83208, 83364, 72342, B26D 710
Patent
active
043432093
ABSTRACT:
A system and method for shearing pieces from bars, characterized by the normal positioning of a bar zone heating element such as an induction heating coil at one or a multiple of piece lengths in front of the bar shear. A bar feed incrementally longitudinally advances a bar one piece length at timed intervals through the heating coil to the bar shear, whereby localized areas or zones of the bar are heated at one piece length intervals. The heat received from the heating coil at each zone soaks into the bar to raise its core temperature as each zone is advanced from the heating coil toward the bar shear. After each incremental advance of the bar, a piece is sheared from the end of the bar at the then presented heated zone. Continuous automatic operation of the system is obtained by automatically detecting the remnant end of the bar, butting the leading end of a new bar to such remnant end of the old bar, automatically advancing the old and new bars together in the aforedescribed manner, and automatically moving the heating coil toward or away from the bar shear a distance corresponding to the length of the remnant piece of the old bar after the last zone of the old bar has been heated, whereby the zones of the new bar heated by the heating coil will be spaced at one piece length increments from the leading end of the new bar. The heating coil is automatically returned to its normal position when the remnant piece of the old bar is discharged from the bar shear so that the new bar is always heated at the desired incremental bar lengths.
REFERENCES:
patent: 2461323 (1949-02-01), Hille
patent: 2630519 (1953-03-01), Gard
patent: 3256564 (1966-06-01), Welshon
patent: 3259004 (1966-07-01), Chisholm
patent: 3422711 (1969-01-01), Toney et al.
patent: 3488802 (1970-01-01), Passarelli
patent: 3908496 (1975-09-01), Moelbert
patent: 3972211 (1976-08-01), Linthicum et al.
Advanced Machine Design Company
Olszewski Robert P.
Yost Frank T.
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